* Estação Cronográfica, (founder), the most importante blog in Portuguese language about Time, Watches and Mentality Evolution: http://estacaochronographica.blogspot.com/.

Member of several international organizations on Time studies, expert on Clocks, Time and Time Measurement history for the Portuguese Government.

Published works on History, Time, Mentality, Clock and Watch making:

* Portugal na I Guerra Mundial (1994). A monographic work on Portuguese presence on World War I.
* 500 Anos de Contactos Luso-Chineses (1998). Also translated to mandarin Chinese. An historic and political essay on sino-portuguese 500 years relationship.
* Machado Joalheiro, no Porto desde 1880 (2002). A monographic work about the main watch retailer point in Oporto.
* História do Tempo em Portugal (2003). A 350 pages book about the History of Time and it’s makers; prefaced by the Portuguese President, Jorge Sampaio, considered by the critics has one of the best essay books published in that year.
* Cronologia do Tempo em Portugal (2004). A timeline on the Portuguese Time.
* Manuscrito Anónimo de Relojoaria na Academia das Ciências de Lisboa (2005). A cientific paper presented at the Lisbon Science Academy, about Maritime Chronometers.
* Relógios e Relojoeiros – Quem É Quem no Tempo em Portugal (2006). A Who’s Who of the Portuguese clock and watchmakers, museums, private collections, schools, etc.
* Relógios de Sol em Portugal (2007). About sundials.
* Dicionário de Relojoaria - O Universo do Tempo e dos seus Medidores (2007). A time and watches diccionary. Also translated to Spanish.
* Tempo e Poder em Lisboa - O Relógio do Arco da Rua Augusta (2008). An essay on Time and Power in Lisbon's history.
* Portugal, o Tempo e a Modernidade (2008). An essay on Time and Modernity in Portugal.
* O Relógio da República (2010). An essay on changes on Portuguese time from Monarchy to Republic, in 1910

* Estação Cronográfica, (founder), the most importante blog in Portuguese language about Time, Watches and Mentality Evolution: http://estacaochronographica.blogspot.com/.

Member of several international organizations on Time studies, expert on Clocks, Time and Time Measurement history for the Portuguese Government.

Published works on History, Time, Mentality, Clock and Watch making:

* Portugal na I Guerra Mundial (1994). A monographic work on Portuguese presence on World War I.
* 500 Anos de Contactos Luso-Chineses (1998). Also translated to mandarin Chinese. An historic and political essay on sino-portuguese 500 years relationship.
* Machado Joalheiro, no Porto desde 1880 (2002). A monographic work about the main watch retailer point in Oporto.
* História do Tempo em Portugal (2003). A 350 pages book about the History of Time and it’s makers; prefaced by the Portuguese President, Jorge Sampaio, considered by the critics has one of the best essay books published in that year.
* Cronologia do Tempo em Portugal (2004). A timeline on the Portuguese Time.
* Manuscrito Anónimo de Relojoaria na Academia das Ciências de Lisboa (2005). A cientific paper presented at the Lisbon Science Academy, about Maritime Chronometers.
* Relógios e Relojoeiros – Quem É Quem no Tempo em Portugal (2006). A Who’s Who of the Portuguese clock and watchmakers, museums, private collections, schools, etc.
* Relógios de Sol em Portugal (2007). About sundials.
* Dicionário de Relojoaria - O Universo do Tempo e dos seus Medidores (2007). A time and watches diccionary. Also translated to Spanish.
* Tempo e Poder em Lisboa - O Relógio do Arco da Rua Augusta (2008). An essay on Time and Power in Lisbon's history.
* Portugal, o Tempo e a Modernidade (2008). An essay on Time and Modernity in Portugal.
* O Relógio da República (2010). An essay on changes on Portuguese time from Monarchy to Republic, in 1910